.41 cal., single shot muzzleloader, side (early) or back action (late) lock marked "H DERINGER PHILADA" (early) or "DERINGER PHILA" (late), 4 in. round (early) or part octagon/part round barrel, round or square back trig...
.52 cal., bevel edge lockplate marked "H. DERINGER PHILA.", single shot muzzleloader, 10 in. round pin fastened barrel, iron pan with fence, "M" on barrel, brass trigger guard, butt cap, and two ramrod thimbles, walnut f...
.54 cal., flat lockplate marked "US DERINGER PHILADELa.", single shot muzzleloader, case color inside hammer boxlock, 6 in. round browned barrel with 1 band, may be marked "RP" or "DERINGER PHILADELa RP" on bar...
.22 rimfire cal., single action revolver, 7 shot unfluted (early) or fluted (late) cylinder, 3 in. ribbed octagon (early First Model) or ribbed round barrel (Transitional and Second Model), marked on top "DERINGER PHILADA, PATD JUNE 3,...
.56 cal., lockplate marked "H. DERINGER PHIL", single shot muzzleloader rifle, 33 in. part octagon/part round barrel with lug for bayonet, marked "CP" above serial number and oval cartouche and proof marked "P"...
.36, .40, .41, .43. .44, .46, .47, or .48 cal., single action single shot, back action lock marked "DERINGER PHILADELA", 1 1/4-3 (pocket size) in., 3 1/2-6 (med. size) in., or 7-9 (dueling size) in. round flat-top barrel with iron...
.32 rimfire cal., single action, "tip-up", 5 shot fluted cylinder, 2 3/4 or 3 1/2 in. round ribbed barrel marked on top "DERINGER PHILADA" and on side "Manuf'd at the Deringer Rifle and Pistol Works, Phila, Pa."...
.54 cal., lockplate marked "US/H. DERINGER PHILADA" or "US/R.JOHNSON", single shot muzzleloader, 33 1/2 in. part octagon/part round barrel, three barrel bands, finger grips on lower to trigger guard tang, walnut full sto...
.54 cal., lockplate marked variations consist of (1) "US" above "H.DERINGER" above "PHILADELA" in middle of lock with date marked vertically at rear, or (2) a smaller "US" over "DERINGER/PHILADEL...
